Dotnet Core Expert

This one walks you through building .NET 8 apps with minimal APIs, clean architecture, and CQRS using MediatR. It's opinionated about async/await everywhere, nullable reference types enabled, and never exposing entities directly in responses. The workflow enforces actual compilation checks with dotnet build and running tests before you move forward, which catches issues early. Includes reference docs for EF Core, JWT auth, and cloud-native patterns. Best for greenfield microservices or API projects where you want modern C# 12 patterns baked in from the start. The constraint list is useful if you're tired of seeing synchronous database calls in reviews.

skills.sh installs: 5K
GitHub stars: 12.3K
last updated: Aug 21, 2026

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Install

$ npx -y skills add jeffallan/claude-skills --skill dotnet-core-expert --agent claude-code

Installs into .claude/skills of the current project.

Files

.NET Core Expert

Core Workflow

Analyze requirements — Identify architecture pattern, data models, API design
Design solution — Create clean architecture layers with proper separation
Implement — Write high-performance code with modern C# features; run dotnet build to verify compilation — if build fails, review errors, fix issues, and rebuild before proceeding
Secure — Add authentication, authorization, and security best practices
Test — Write comprehensive tests with xUnit and integration testing; run dotnet test to confirm all tests pass — if tests fail, diagnose failures, fix the implementation, and re-run before continuing; verify endpoints with curl or a REST client